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2. MLLT3 governs human haematopoietic stem-cell self-renewal and engraftment

Author

Calvanese, Vincenzo, Nguyen, Andrew T, Bolan, Timothy J, Vavilina, Anastasia, Su, Trent, Lee, Lydia K, Wang, Yanling, Lay, Fides D, Magnusson, Mattias, Crooks, Gay M, Kurdistani, Siavash K, and Mikkola, Hanna KA

Subjects
Biomedical and Clinical Sciences, Cardiovascular Medicine and Haematology, Stem Cell Research, Stem Cell Research - Nonembryonic - Human, Stem Cell Research - Nonembryonic - Non-Human, Genetics, Transplantation, Regenerative Medicine, Hematology, 1.1 Normal biological development and functioning, Blood, Generic health relevance, Animals, Cell Self Renewal, Cells, Cultured, Gene Expression Regulation, Hematopoietic Stem Cell Transplantation, Hematopoietic Stem Cells, Humans, Mice, Nuclear Proteins, Protein Binding, General Science & Technology
Abstract

Limited knowledge of the mechanisms that govern the self-renewal of human haematopoietic stem cells (HSCs), and why this fails in culture, have impeded the expansion of HSCs for transplantation1. Here we identify MLLT3 (also known as AF9) as a crucial regulator of HSCs that is highly enriched in human fetal, neonatal and adult HSCs, but downregulated in culture. Depletion of MLLT3 prevented the maintenance of transplantable human haematopoietic stem or progenitor cells (HSPCs) in culture, whereas stabilizing MLLT3 expression in culture enabled more than 12-fold expansion of transplantable HSCs that provided balanced multilineage reconstitution in primary and secondary mouse recipients. Similar to endogenous MLLT3, overexpressed MLLT3 localized to active promoters in HSPCs, sustained levels of H3K79me2 and protected the HSC transcriptional program in culture. MLLT3 thus acts as HSC maintenance factor that links histone reader and modifying activities to modulate HSC gene expression, and may provide a promising approach to expand HSCs for transplantation.

Published
2019

3. Promoter-Enhancer Communication Occurs Primarily within Insulated Neighborhoods

Author

Sun, Fei, Chronis, Constantinos, Kronenberg, Michael, Chen, Xiao-Fen, Su, Trent, Lay, Fides D, Plath, Kathrin, Kurdistani, Siavash K, and Carey, Michael F

Subjects
Biochemistry and Cell Biology, Bioinformatics and Computational Biology, Biomedical and Clinical Sciences, Biological Sciences, Stem Cell Research - Embryonic - Non-Human, Genetics, Stem Cell Research, Human Genome, Animals, Binding Sites, CCCTC-Binding Factor, Cell Cycle Proteins, Cell Line, Chromosomal Proteins, Non-Histone, Chromosomes, Mammalian, Databases, Genetic, Down-Regulation, Enhancer Elements, Genetic, Insulator Elements, Mice, Mouse Embryonic Stem Cells, Promoter Regions, Genetic, Protein Binding, RNA, Messenger, Receptors, Estrogen, Transcription, Genetic, Cohesins, Esrrb, chromatin looping, enhancer, insulated neighborhood, promoter, transcription, Medical and Health Sciences, Developmental Biology, Biological sciences, Biomedical and clinical sciences, Health sciences
Abstract

Metazoan chromosomes are sequentially partitioned into topologically associating domains (TADs) and then into smaller sub-domains. One class of sub-domains, insulated neighborhoods, are proposed to spatially sequester and insulate the enclosed genes through self-association and chromatin looping. However, it has not been determined functionally whether promoter-enhancer interactions and gene regulation are broadly restricted to within these loops. Here, we employed published datasets from murine embryonic stem cells (mESCs) to identify insulated neighborhoods that confine promoter-enhancer interactions and demarcate gene regulatory regions. To directly address the functionality of these regions, we depleted estrogen-related receptor β (Esrrb), which binds the Mediator co-activator complex, to impair enhancers of genes within 222 insulated neighborhoods without causing mESC differentiation. Esrrb depletion reduces Mediator binding, promoter-enhancer looping, and expression of both nascent RNA and mRNA within the insulated neighborhoods without significantly affecting the flanking genes. Our data indicate that insulated neighborhoods represent functional regulons in mammalian genomes.

Published
2019

4. Genetic Regulation of Fibroblast Activation and Proliferation in Cardiac Fibrosis

Author

Park, Shuin, Ranjbarvaziri, Sara, Lay, Fides D, Zhao, Peng, Miller, Mark J, Dhaliwal, Jasmeet S, Huertas-Vazquez, Adriana, Wu, Xiuju, Qiao, Rong, Soffer, Justin M, Rau, Christoph, Wang, Yibin, Mikkola, Hanna KA, Lusis, Aldons J, and Ardehali, Reza

Subjects
Biomedical and Clinical Sciences, Cardiovascular Medicine and Haematology, Clinical Sciences, Genetics, Cardiovascular, Heart Disease, Aetiology, 2.1 Biological and endogenous factors, Animals, Cardiomyopathies, Cell Proliferation, Cells, Cultured, Disease Models, Animal, Female, Fibroblasts, Fibrosis, Genetic Predisposition to Disease, Genetic Variation, Isoproterenol, Latent TGF-beta Binding Proteins, Mice, Inbred C3H, Mice, Inbred C57BL, Phenotype, Species Specificity, Transcriptome, fibroblasts, fibrosis, isoproterenol, Cardiorespiratory Medicine and Haematology, Public Health and Health Services, Cardiovascular System & Hematology, Cardiovascular medicine and haematology, Clinical sciences, Sports science and exercise
Abstract

BackgroundGenetic diversity and the heterogeneous nature of cardiac fibroblasts (CFbs) have hindered characterization of the molecular mechanisms that regulate cardiac fibrosis. The Hybrid Mouse Diversity Panel offers a valuable tool to examine genetically diverse cardiac fibroblasts and their role in fibrosis.MethodsThree strains of mice (C57BL/6J, C3H/HeJ, and KK/HlJ) were selected from the Hybrid Mouse Diversity Panel and treated with either isoproterenol (ISO) or saline by an intraperitoneally implanted osmotic pump. After 21 days, cardiac function and levels of fibrosis were measured by echocardiography and trichrome staining, respectively. Activation and proliferation of CFbs were measured by in vitro and in vivo assays under normal and injury conditions. RNA sequencing was done on isolated CFbs from each strain. Results were analyzed by Ingenuity Pathway Analysis and validated by reverse transcription-qPCR, immunohistochemistry, and ELISA.ResultsISO treatment in C57BL/6J, C3H/HeJ, and KK/HlJ mice resulted in minimal, moderate, and extensive levels of fibrosis, respectively (n=7-8 hearts per condition). Isolated CFbs treated with ISO exhibited strain-specific increases in the levels of activation but showed comparable levels of proliferation. Similar results were found in vivo, with fibroblast activation, and not proliferation, correlating with the differential levels of cardiac fibrosis after ISO treatment. RNA sequencing revealed that CFbs from each strain exhibit unique gene expression changes in response to ISO. We identified Ltbp2 as a commonly upregulated gene after ISO treatment. Expression of LTBP2 was elevated and specifically localized in the fibrotic regions of the myocardium after injury in mice and in human heart failure patients.ConclusionsThis study highlights the importance of genetic variation in cardiac fibrosis by using multiple inbred mouse strains to characterize CFbs and their response to ISO treatment. Our data suggest that, although fibroblast activation is a response that parallels the extent of scar formation, proliferation may not necessarily correlate with levels of fibrosis. In addition, by comparing CFbs from multiple strains, we identified pathways as potential therapeutic targets and LTBP2 as a marker for fibrosis, with relevance to patients with underlying myocardial fibrosis.

Published
2018

5. Cbx3 maintains lineage specificity during neural differentiation

Author

Huang, Chengyang, Su, Trent, Xue, Yong, Cheng, Chen, Lay, Fides D, McKee, Robin A, Li, Meiyang, Vashisht, Ajay, Wohlschlegel, James, Novitch, Bennett G, Plath, Kathrin, Kurdistani, Siavash K, and Carey, Michael

Subjects
Biological Sciences, Genetics, Neurosciences, Regenerative Medicine, Stem Cell Research - Embryonic - Non-Human, Stem Cell Research - Nonembryonic - Non-Human, Stem Cell Research, 1.1 Normal biological development and functioning, Animals, Cell Differentiation, Cell Lineage, Cells, Cultured, Chromosomal Proteins, Non-Histone, Cyclin-Dependent Kinase 8, Embryonic Stem Cells, Gene Expression Regulation, Mediator Complex, Mesoderm, Mice, Neural Stem Cells, Promoter Regions, Genetic, RNA, Small Interfering, Cbx3, Med26, embryonic stem cell, neural precursor, preinitiation complex, mesoderm, Medical and Health Sciences, Psychology and Cognitive Sciences, Developmental Biology, Biological sciences, Biomedical and clinical sciences, Psychology
Abstract

Chromobox homolog 3 (Cbx3/heterochromatin protein 1γ [HP1γ]) stimulates cell differentiation, but its mechanism is unknown. We found that Cbx3 binds to gene promoters upon differentiation of murine embryonic stem cells (ESCs) to neural progenitor cells (NPCs) and recruits the Mediator subunit Med26. RNAi knockdown of either Cbx3 or Med26 inhibits neural differentiation while up-regulating genes involved in mesodermal lineage decisions. Thus, Cbx3 and Med26 together ensure the fidelity of lineage specification by enhancing the expression of neural genes and down-regulating genes specific to alternative fates.

Published
2017

6. Multi-omic characterization of antibody-producing CHO cell lines elucidates metabolic reprogramming and nutrient uptake bottlenecks

Author

Gopalakrishnan, Saratram, primary, Johnson, William, additional, Gomez, Miguel A Valderrama, additional, Icten, Elcin, additional, Tat, Jasmine, additional, Lay, Fides, additional, Diep, Jonathan, additional, Gomez, Natalia, additional, Stevens, Jennitte, additional, Schlegel, Fabrice, additional, Rolandi, Pablo, additional, Kontoravdi, Cleo, additional, and Lewis, Nathan E, additional

Published
2023
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9. Mapping genomic loci implicates genes and synaptic biology in schizophrenia

Author

Trubetskoy, Vassily, Panagiotaropoulou, Georgia, Awasthi, Swapnil, Braun, Alice, Kraft, Julia, Skarabis, Nora, Walter, Henrik, Ripke, Stephan, Pardiñas, Antonio F., Dennison, Charlotte A., Hall, Lynsey S., Harwood, Janet C., Richards, Alexander L., Legge, Sophie E., Lynham, Amy, Williams, Nigel M., Bray, Nicholas J., Escott-Price, Valentina, Kirov, George, Holmans, Peter A., Pocklington, Andrew J., Owen, Michael J., Walters, James T. R., O’Donovan, Michael C., Qi, Ting, Sidorenko, Julia, Wu, Yang, Zeng, Jian, Gratten, Jacob, Visscher, Peter M., Yang, Jian, Wray, Naomi R., Bigdeli, Tim B., Fanous, Ayman H., Bryois, Julien, Bergen, Sarah E., Kähler, Anna K., Magnusson, Patrik K. E., Hultman, Christina M., Sullivan, Patrick F., Chen, Chia-Yen, Atkinson, Elizabeth G., Goldstein, Jacqueline I., Howrigan, Daniel P., Martin, Alicia R., Daly, Mark J., Huang, Hailiang, Neale, Benjamin M., Ge, Tian, Lam, Max, Belliveau, Richard A., Chambert, Kimberley D., Genovese, Giulio, Lee, Phil H., Pietiläinen, Olli, McCarroll, Steven A., Moran, Jennifer L., Smoller, Jordan W., Brown, Tyler C., Feng, Guoping, Hyman, Steven E., Sheng, Morgan, Chong, Siow Ann, Subramaniam, Mythily, Lencz, Todd, Malhotra, Anil K., Watanabe, Kyoko, Frei, Oleksandr, Agartz, Ingrid, Athanasiu, Lavinia, Melle, Ingrid, Andreassen, Ole A., Steen, Nils Eiel, DeLisi, Lynn E., Mesholam-Gately, Raquelle I., Seidman, Larry J., Koopmans, Frank, Magnusson, Sigurdur, Stefánsson, Hreinn, Stefansson, Kari, Grove, Jakob, Agerbo, Esben, Als, Thomas D., Bybjerg-Grauholm, Jonas, Demontis, Ditte, Hougaard, David M., Mors, Ole, Mortensen, Preben B., Nordentoft, Merete, Børglum, Anders D., Mattheisen, Manuel, Kim, Minsoo, Gandal, Michael J., Li, Zhiqiang, Shi, Yongyong, Zhou, Wei, Qin, Shengying, Voloudakis, Georgios, Zhang, Wen, Roussos, Panos, Adams, Mark, McIntosh, Andrew, Söderman, Erik, Jönsson, Erik G., McGrath, John J., Al Eissa, Mariam, Bass, Nicholas J., Fiorentino, Alessia, O’Brien, Niamh Louise, Pimm, Jonathan, Sharp, Sally Isabel, McQuillin, Andrew, Albus, Margot, Alexander, Madeline, Alizadeh, Behrooz Z., Bruggeman, Richard, Alptekin, Köksal, Amin, Farooq, Arolt, Volker, Lencer, Rebecca, Rothermundt, Matthias, Baune, Bernhard T., Arrojo, Manuel, Azevedo, Maria Helena, Bacanu, Silviu A., Webb, Bradley T., Wormley, Brandon K., Riley, Brien P., Kendler, Kenneth S., Begemann, Martin, Mitjans, Marina, Steixner-Kumar, Agnes A., Ehrenreich, Hannelore, Bene, Judit, Benyamin, Beben, Blasi, Giuseppe, Rampino, Antonio, Torretta, Silvia, Bertolino, Alessandro, Bobes, Julio, Bonassi, Stefano, Bressan, Rodrigo Affonseca, Gadelha, Ary, Noto, Cristiano, Ota, Vanessa Kiyomi, Santoro, Marcos Leite, Belangero, Sintia Iole, Bromet, Evelyn J., Buckley, Peter F., Buckner, Randy L., Cahn, Wiepke, Kahn, René S., Cairns, Murray J., Scott, Rodney J., Tooney, Paul A., Schall, Ulrich, Calkins, Monica E., Gur, Raquel E., Gur, Ruben C., Turetsky, Bruce I., Carr, Vaughan J., Castle, David, Harvey, Carol, Catts, Stanley V., Chan, Raymond C. K., Chaumette, Boris, Kebir, Oussama, Krebs, Marie-Odile, Cheng, Wei, Cheung, Eric F. C., Cohen, David, Consoli, Angèle, Giannitelli, Marianna, Laurent-Levinson, Claudine, Cordeiro, Quirino, Costas, Javier, Curtis, Charles, Quattrone, Diego, Breen, Gerome, Collier, David A., Di Forti, Marta, Vassos, Evangelos, Mondelli, Valeria, van Amelsvoort, Therese, Murray, Robin M., Davidson, Michael, Davis, Kenneth L., Haroutunian, Vahram, Malaspina, Dolores, Reichenberg, Abraham, Siever, Larry J., Silverman, Jeremy M., Buxbaum, Joseph D., de Haan, Lieuwe, Degenhardt, Franziska, Forstner, Andreas, Nöthen, Markus M., Dickerson, Faith, Dikeos, Dimitris, Papadimitriou, George N., Dinan, Timothy, Djurovic, Srdjan, Duan, Jubao, Gejman, Pablo V., Sanders, Alan R., Ducci, Giuseppe, Dudbridge, Frank, Eriksson, Johan G., Fañanás, Lourdes, Peñas, Javier González, González-Pinto, Ana, Molto, María Dolores, Moreno, Carmen, Parellada, Mara, Sanjuan, Julio, Crepo-Facorro, Benedicto, Mata, Ignacio, Arango, Celso, Faraone, Stephen V., Frank, Josef, Streit, Fabian, Witt, Stephanie H., Rietschel, Marcella, Freimer, Nelson B., Ophoff, Roel A., Fromer, Menachem, Stahl, Eli A., Frustaci, Alessandra, Gershon, Elliot S., Giegling, Ina, Hartmann, Annette M., Konte, Bettina, Rujescu, Dan, Giusti-Rodríguez, Paola, Szatkiewicz, Jin P., Godard, Stephanie, González Peñas, Javier, Gopal, Srihari, Savitz, Adam, Li, Qingqin S., Green, Michael F., Nuechterlein, Keith H., Sugar, Catherine A., Greenwood, Tiffany A., Light, Gregory A., Swerdlow, Neal R., Braff, David, Guillin, Olivier, Campion, Dominique, Gülöksüz, Sinan, Luykx, Jurjen J., Rutten, Bart P. F., van Winkel, Ruud, Gutiérrez, Blanca, Hahn, Eric, Hakonarson, Hakon, Pellegrino, Renata, Pantelis, Christos, Hayward, Caroline, Henskens, Frans A., Kelly, Brian J., Herms, Stefan, Hoffmann, Per, Ikeda, Masashi, Iwata, Nakao, Iyegbe, Conrad, van Os, Jim, Joa, Inge, Julià, Antonio, Marsal, Sara, Kam-Thong, Tony, Rautanen, Anna, Kamatani, Yoichiro, Karachanak-Yankova, Sena, Toncheva, Draga, Keller, Matthew C., Khrunin, Andrey, Limborska, Svetlana, Slominsky, Petr, Kim, Sung-Wan, Klovins, Janis, Nikitina-Zake, Liene, Kondratiev, Nikolay, Golimbet, Vera, Kubo, Michiaki, Kučinskas, Vaidutis, Kučinskiene, Zita Ausrele, Kusumawardhani, Agung, Kuzelova-Ptackova, Hana, Landi, Stefano, Lazzeroni, Laura C., Levinson, Douglas F., Petryshen, Tracey L., Lehrer, Douglas S., Lerer, Bernard, Li, Miaoxin, Lieberman, Jeffrey, Stroup, T. Scott, Liu, Chih-Min, Hwu, Hai-Gwo, Lönnqvist, Jouko, Loughland, Carmel M., Lubinski, Jan, Bakker, Steven, Kahn, René, Macek, Milan, Mackinnon, Andrew, Maher, Brion S., Maier, Wolfgang, Atbaşoğlu, Eşref Cem, Mallet, Jacques, Marder, Stephen R., Martorell, Lourdes, Muntané, Gerard, Vilella, Elisabet, Meier, Sandra, Schulze, Thomas G., McCarley, Robert W., McDonald, Colm, Donohoe, Gary, Morris, Derek W., Periyasamy, Sathish, Mowry, Bryan J., Medeiros, Helena, Sobell, Janet L., Melegh, Bela, Metspalu, Andres, Milani, Lili, Esko, Tõnu, Michie, Patricia T., Milanova, Vihra, Molden, Espen, Molina, Esther, Morley, Christopher P., Murphy, Kieran C., Myin-Germeys, Inez, Nenadić, Igor, Nestadt, Gerald, Pulver, Ann E., O’Neill, F. Anthony, Oh, Sang-Yun, Olincy, Ann, Freedman, Robert, Paunio, Tiina, Perkins, Diana O., Pfuhlmann, Bruno, Benner, Christian, Pirinen, Matti, Palotie, Aarno, Porteous, David, Powell, John, Quested, Digby, Radant, Allen D., Tsuang, Debby W., Rapaport, Mark H., Roe, Cheryl, Liu, Chunyu, Roffman, Joshua L., Roth, Julian, Gawlik, Micha, Saker-Delye, Safaa, Salomaa, Veikko, Suvisaari, Jaana, Shi, Jianxin, Sigurdsson, Engilbert, Sim, Kang, So, Hon-Cheong, Stain, Helen J., Stögmann, Elisabeth, Zimprich, Fritz, Stone, William S., Straub, Richard E., Hyde, Thomas, Jaffe, Andrew, Weinberger, Daniel R., Strengman, Eric, Svrakic, Dragan M., Cloninger, C. Robert, Ta, Thi Minh Tam, Takahashi, Atsushi, Terao, Chikashi, Thibaut, Florence, Tosato, Sarah, Tura, Gian Battista, Üçok, Alp, Vaaler, Arne, Veijola, Juha, Waddington, John, Waterreus, Anna, Morgan, Vera A., Jablensky, Assen V., Weiser, Mark, Wu, Jing Qin, Xu, Zhida, Yolken, Robert, Zai, Clement C., Kennedy, James L., Zhu, Feng, Saka, Meram C., Ayub, Muhammad, Black, Donald W., Buccola, Nancy G., Byerley, William F., Chen, Wei J., Crespo-Facorro, Benedicto, Galletly, Cherrie, Gennarelli, Massimo, Müller-Myhsok, Bertram, Neil, Amanda L., Pato, Michele T., Pato, Carlos N., Wang, Shi-Heng, Xu, Shuhua, Adolfsson, Rolf, Bramon, Elvira, Cervilla, Jorge A., Cichon, Sven, Corvin, Aiden, Gill, Michael, Curtis, David, Domenici, Enrico, Gareeva, Anna, Khusnutdinova, Elza, Glatt, Stephen J., Hong, Kyung Sue, Knowles, James A., Lee, Jimmy, Liu, Jianjun, Malhotra, Dheeraj, Menezes, Paulo R., Nimgaonkar, Vishwajit, Paciga, Sara A., Rivera, Margarita, Schwab, Sibylle G., Serretti, Alessandro, Sham, Pak C., Clair, David St, Tsuang, Ming T., Vawter, Marquis P., Werge, Thomas, Wildenauer, Dieter B., Yu, Xin, Yue, Weihua, Verhage, Matthijs, Sahasrabudhe, Dnyanada, Toonen, Ruud F., Posthuma, Danielle, Dai, Nan, Wenwen, Qin, Wildenauer, D. B., Agiananda, Feranindhya, Amir, Nurmiati, Antoni, Ronald, Arsianti, Tiana, Asmarahadi, Asmarahadi, Diatri, H., Djatmiko, Prianto, Irmansyah, Irmansyah, Khalimah, Siti, Kusumadewi, Irmia, Kusumaningrum, Profitasari, Lukman, Petrin R., Nasrun, Martina W., Safyuni, N. S., Prasetyawan, Prasetyawan, Semen, G., Siste, Kristiana, Tobing, Heriani, Widiasih, Natalia, Wiguna, Tjhin, Wulandari, D., Evalina, None, Hananto, A. J., Ismoyo, Joni H., Marini, T. M., Henuhili, Supiyani, Reza, Muhammad, Yusnadewi, Suzy, Abyzov, Alexej, Akbarian, Schahram, van Bakel, Harm, Breen, Michael, Charney, Alex, Dracheva, Stella, Girdhar, Kiran, Hoffman, Gabriel, Jiang, Yan, Pinto, Dalila, Purcell, Shaun, Roussos, Panagiotis, Wiseman, Jennifer, Ashley-Koch, Allison, Crawford, Gregory, Reddy, Tim, Brown, Miguel, Grennan, Kay, Carlyle, Becky, Emani, Prashant, Galeev, Timur, Gerstein, Mark, Gu, Mengting, Guerra, Brittney, Gursoy, Gamze, Kitchen, Robert, Lee, Donghoon, Li, Mingfeng, Liu, Shuang, Navarro, Fabio, Pan, Xinghua, Pochareddy, Sirisha, Rozowsky, Joel, Sestan, Nenad, Sethi, Anurag, Shi, Xu, Szekely, Anna, Wang, Daifeng, Warrell, Jonathan, Weissman, Sherman, Wu, Feinan, Xu, Xuming, Coetzee, Gerard, Farnham, Peggy, Lay, Fides, Rhie, Suhn, Witt, Heather, Wood, Shannon, Yao, Lijing, Gandal, Mike, Polioudakis, Damon, Swarup, Vivek, Won, Hyejung, Giase, Gina, Jiang, Shan, Kefi, Amira, Shieh, Annie, Goes, Fernando, Zandi, Peter, Kim, Yunjung, Mattei, Eugenio, Purcaro, Michael, Pratt, Henry, Peters, Mette A., Sanders, Stephan, Weng, Zhiping, White, Kevin, Arranz, Maria J., Lewis, Cathryn, Lin, Kuang, Walshe, Muriel, Bender, Stephan, Weisbrod, Matthias, Hall, Jeremy, Lawrie, Stephen, Linszen, Don H., Achsel, Tilmann, Bagni, Claudia, Andres-Alonso, Maria, Kreutz, Michael R., Bayés, Àlex, Biederer, Thomas, Brose, Nils, Chua, John Jia En, Coba, Marcelo P., Cornelisse, L. Niels, van Weering, Jan R. T., de Jong, Arthur P. H., MacGillavry, Harold D., de Juan-Sanz, Jaime, Dieterich, Daniela C., Pielot, Rainer, Smalla, Karl-Heinz, Gundelfinger, Eckart D., Goldschmidt, Hana L., Huganir, Richard L., Hoogenraad, Casper, Imig, Cordelia, Jahn, Reinhard, Jung, Hwajin, Kim, Eunjoon, Kaeser, Pascal S., Lipstein, Noa, Malenka, Robert, McPherson, Peter S., O’Connor, Vincent, Ryan, Timothy A., Sala, Carlo, Verpelli, Chiara, Smit, August B., Südhof, Thomas C., Thomas, Paul D., Medical Research Council (UK), National Natural Science Foundation of China, Royal Society (UK), Chinese Academy of Sciences, Shanghai Science and Technology Committee, Research Council of Norway, European Commission, Fundação de Amparo à Pesquisa do Estado de São Paulo, Ministerio de Ciencia e Innovación (España), Instituto de Salud Carlos III, Comunidad de Madrid, Fundación Alicia Koplowitz, Fundación Alonso Lozano, Mental Health Research UK, Wellcome Trust, Brain and Behavior Research Foundation, NIHR Biomedical Research Centre (UK), University College London, Generalitat Valenciana, Internal medicine, Human genetics, Amsterdam Neuroscience - Cellular & Molecular Mechanisms, Amsterdam Neuroscience - Compulsivity, Impulsivity & Attention, Amsterdam Neuroscience - Complex Trait Genetics, Amsterdam Reproduction & Development (AR&D), Life Course Epidemiology (LCE), Real World Studies in PharmacoEpidemiology, -Genetics, -Economics and -Therapy (PEGET), Clinical Cognitive Neuropsychiatry Research Program (CCNP), Psychiatry, Psychiatrie & Neuropsychologie, RS: MHeNs - R2 - Mental Health, RS: MHeNs - R3 - Neuroscience, MUMC+: MA Psychiatrie (3), MUMC+: MA Med Staf Spec Psychiatrie (9), MUMC+: Hersen en Zenuw Centrum (3), Trubetskoy, Vassily, Pardiñas, Antonio F., Qi, Ting, Panagiotaropoulou, Georgia, Benyamin, Beben, O'Donovan, Michael C, Schizophrenia Working Group of the Psychiatric Genomics Consortium, Adult Psychiatry, APH - Mental Health, ANS - Complex Trait Genetics, ANS - Mood, Anxiety, Psychosis, Stress & Sleep, Molecular and Cellular Neurobiology, Functional Genomics, and Complex Trait Genetics

Subjects
Genetics of the nervous system, Schizophrenia/genetics, VARIANTS, PROFILE, Polymorphism, Single Nucleotide, Genome-wide association studies, Article, DISEASE, SDG 3 - Good Health and Well-being, Humans, Genetic Predisposition to Disease, Alleles, Genomics, Genome-Wide Association Study, Schizophrenia, Polymorphism, RISK, ARCHITECTURE, Science & Technology, Multidisciplinary, MUTATIONS, Genetic Predisposition to Disease/genetics, Settore BIO/13, Single Nucleotide, ASSOCIATION, Polymorphism, Single Nucleotide/genetics, STATISTICS, Multidisciplinary Sciences, INDIVIDUALS, Science & Technology - Other Topics, Diseases of the nervous system, ddc:500, Single Nucleotide/genetics, INTEGRATION
Abstract

Schizophrenia has a heritability of 60-80%1, much of which is attributable to common risk alleles. Here, in a two-stage genome-wide association study of up to 76,755 individuals with schizophrenia and 243,649 control individuals, we report common variant associations at 287 distinct genomic loci. Associations were concentrated in genes that are expressed in excitatory and inhibitory neurons of the central nervous system, but not in other tissues or cell types. Using fine-mapping and functional genomic data, we identify 120 genes (106 protein-coding) that are likely to underpin associations at some of these loci, including 16 genes with credible causal non-synonymous or untranslated region variation. We also implicate fundamental processes related to neuronal function, including synaptic organization, differentiation and transmission. Fine-mapped candidates were enriched for genes associated with rare disruptive coding variants in people with schizophrenia, including the glutamate receptor subunit GRIN2A and transcription factor SP4, and were also enriched for genes implicated by such variants in neurodevelopmental disorders. We identify biological processes relevant to schizophrenia pathophysiology; show convergence of common and rare variant associations in schizophrenia and neurodevelopmental disorders; and provide a resource of prioritized genes and variants to advance mechanistic studies., The work at Cardiff University was additionally supported by Medical Research Council Centre grant no. MR/L010305/1 and program grant no. G0800509. S. Xu also gratefully acknowledges the support of the National Natural Science Foundation of China (NSFC) grants (31525014, 91731303, 31771388, 31961130380 and 32041008), the UK Royal Society-Newton Advanced Fellowship (NAF\R1\191094), the Key Research Program of Frontier Sciences (QYZDJ-SSW-SYS009) and the Strategic Priority Research Program (XDB38000000) of the Chinese Academy of Sciences, and the Shanghai Municipal Science and Technology Major Project (2017SHZDZX01). O. A. Andreassen was supported by the Research Council of Norway (283798, 262656, 248980, 273291, 248828, 248778, 223273); KG Jebsen Stiftelsen, South-East Norway Health Authority, EU H2020 no. 847776. B. Melegh was supported in part by the National Scientific Research Program (NKFIH) K 138669. S. V. Faraone is supported by the European Union’s Seventh Framework Programme for research, technological development and demonstration under grant agreement no. 602805, the European Union’s Horizon 2020 research and innovation programme under grant agreements 667302 and 728018 and NIMH grants 5R01MH101519 and U01 MH109536-01. S. I. Belangero was supported by FAPESP (Fundação de Amparo à Pesquisa do Estado de São Paulo), grant numbers: 2010/08968-6; 2014/07280-1 2011/50740-5 (including R. A. Bressan). The Singapore team (J. Lee, J. Liu, K. Sim, S. A. Chong and M. Subramanian) acknowledges the National Medical Research Council Translational and Clinical Research Flagship Programme (grant no.: NMRC/TCR/003/2008). M. Macek was supported by LM2018132, CZ.02.1.01/0.0/0.0/18_046/0015515 and IP6003 –VZFNM00064203. C. Arango has been funded by the Spanish Ministry of Science and Innovation, Instituto de Salud Carlos III (SAM16PE07CP1, PI16/02012, PI19/024), co-financed by ERDF Funds from the European Commission, ‘A way of making Europe’, CIBERSAM, Madrid Regional Government (B2017/BMD-3740 AGES-CM-2), European Union Structural Funds, European Union Seventh Framework Program and European Union H2020 Program under the Innovative Medicines Initiative 2 Joint Undertaking (grant agreement no 115916, project PRISM; and grant agreement no. 777394, project AIMS-2-TRIALS), Fundación Familia Alonso and Fundación Alicia Koplowitz. E. Bramon acknowledges support from the National Institute of Health Research UK (grant NIHR200756); Mental Health Research UK John Grace QC Scholarship 2018; an ESRC collaborative award 2020; BMA Margaret Temple Fellowship 2016; Medical Research Council New Investigator Award (G0901310); MRC Centenary Award (G1100583); MRC project grant G1100583; National Institute of Health Research UK post-doctoral fellowship (PDA/02/06/016); NARSAD Young Investigator awards 2005 and 2008; Wellcome Trust Research Training Fellowship; Wellcome Trust Case Control Consortium awards (085475/B/08/Z, 085475/Z/08/Z); European Commission Horizon 2020 (747429); NIHR Biomedical Research Centre for Mental Health at the South London and Maudsley NHS Foundation Trust and King’s College London; and NIHR Biomedical Research Centre at University College London Hospitals NHS Foundation Trust and University College London (UCLH BRC - Mental Health Theme). D. Molto is funded by the European Regional Development Fund (ERDF)–Valencian Community 2014–2020, Spain. E. G. Atkinson was supported by the NIMH K01MH121659.

Published
2022
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15. Using 3D epigenomic maps of primary olfactory neuronal cells from living individuals to understand gene regulation

Author

Rhie, Suhn K., primary, Schreiner, Shannon, additional, Witt, Heather, additional, Armoskus, Chris, additional, Lay, Fides D., additional, Camarena, Adrian, additional, Spitsyna, Valeria N., additional, Guo, Yu, additional, Berman, Benjamin P., additional, Evgrafov, Oleg V., additional, Knowles, James A., additional, and Farnham, Peggy J., additional

Published
2018
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16. Telomere Damage Maintains Hematopoietic Stem Cells (HSCs) in an Activated Metabolic State, Which Compromises Their Self-Renewal Capability

Author

Santoni, Andrea, primary, Fiorini, Elena, additional, Lay, Fides D, additional, Marchesini, Matteo, additional, Ogoti, Yamini, additional, Jackson, Christopher, additional, Rose, Ashley, additional, Clise-Dwyer, Karen, additional, Ganan-Gomez, Irene, additional, Garcia-Manero, Guillermo, additional, and Colla, Simona, additional

Published
2018
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21. Nucleosome Positioning and NDR Structure at RNA Polymerase III Promoters

Author

Helbo, Alexandra Søgaard, Lay, Fides D, Jones, Peter A, Liang, Gangning, Grønbæk, Kirsten, Helbo, Alexandra Søgaard, Lay, Fides D, Jones, Peter A, Liang, Gangning, and Grønbæk, Kirsten

Abstract

Chromatin is structurally involved in the transcriptional regulation of all genes. While the nucleosome positioning at RNA polymerase II (pol II) promoters has been extensively studied, less is known about the chromatin structure at pol III promoters in human cells. We use a high-resolution analysis to show substantial differences in chromatin structure of pol II and pol III promoters, and between subtypes of pol III genes. Notably, the nucleosome depleted region at the transcription start site of pol III genes extends past the termination sequences, resulting in nucleosome free gene bodies. The +1 nucleosome is located further downstream than at pol II genes and furthermore displays weak positioning. The variable position of the +1 location is seen not only within individual cell populations and between cell types, but also between different pol III promoter subtypes, suggesting that the +1 nucleosome may be involved in the transcriptional regulation of pol III genes. We find that expression and DNA methylation patterns correlate with distinct accessibility patterns, where DNA methylation associates with the silencing and inaccessibility at promoters. Taken together, this study provides the first high-resolution map of nucleosome positioning and occupancy at human pol III promoters at specific loci and genome wide.

Published
2017

24. The role of DNA methylation in directing the functional organization of the cancer epigenome

Author

Massachusetts Institute of Technology. Computer Science and Artificial Intelligence Laboratory, Liu, Yaping, Lay, Fides D., Kelly, Theresa K., Witt, Heather, Farnham, Peggy J., Jones, Peter A., Berman, Benjamin P., Massachusetts Institute of Technology. Computer Science and Artificial Intelligence Laboratory, Liu, Yaping, Lay, Fides D., Kelly, Theresa K., Witt, Heather, Farnham, Peggy J., Jones, Peter A., and Berman, Benjamin P.

Abstract

The holistic role of DNA methylation in the organization of the cancer epigenome is not well understood. Here we perform a comprehensive, high-resolution analysis of chromatin structure to compare the landscapes of HCT116 colon cancer cells and a DNA methylation-deficient derivative. The NOMe-seq accessibility assay unexpectedly revealed symmetrical and transcription-independent nucleosomal phasing across active, poised, and inactive genomic elements. DNA methylation abolished this phasing primarily at enhancers and CpG island (CGI) promoters, with little effect on insulators and non-CGI promoters. Abolishment of DNA methylation led to the context-specific reestablishment of the poised and active states of normal colon cells, which were marked in methylation-deficient cells by distinct H3K27 modifications and the presence of either well-phased nucleosomes or nucleosome-depleted regions, respectively. At higher-order genomic scales, we found that long, H3K9me3-marked domains had lower accessibility, consistent with a more compact chromatin structure. Taken together, our results demonstrate the nuanced and context-dependent role of DNA methylation in the functional, multiscale organization of cancer epigenomes., Charles Heidelberger Memorial Fellowship

Published
2015

30. Short-term Correction of Arginase Deficiency in a Neonatal Murine Model With a Helper-dependent Adenoviral Vector

Author

Gau, Chia-Ling, primary, Rosenblatt, Robin A, additional, Cerullo, Vincenzo, additional, Lay, Fides D, additional, Dow, Adrienne C, additional, Livesay, Justin, additional, Brunetti-Pierri, Nicola, additional, Lee, Brendan, additional, Cederbaum, Stephen D, additional, Grody, Wayne W, additional, and Lipshutz, Gerald S, additional

Published
2009
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31. Cbx3 maintains lineage specificity during neural differentiation.

Author

Chengyang Huang, Trent Su, Yong Xue, Chen Cheng, Lay, Fides D., McKee, Robin A., Meiyang Li, Vashisht, Ajay, Wohlschlegel, James, Novitch, Bennett G., Plath, Kathrin, Kurdistani, Siavash K., and Carey, Michael

Subjects
*HETEROCHROMATIN, *GENES, *EMBRYONIC stem cells, *RNA, *GENE expression
Abstract

Chromobox homolog 3 (Cbx3/heterochromatin protein 1γ [HP1γ ]) stimulates cell differentiation, but its mechanism is unknown. We found that Cbx3 binds to gene promoters upon differentiation of murine embryonic stem cells (ESCs) to neural progenitor cells (NPCs) and recruits the Mediator subunit Med26. RNAi knockdown of either Cbx3 or Med26 inhibits neural differentiation while upregulating genes involved in mesodermal lineage decisions. Thus, Cbx3 and Med26 together ensure the fidelity of lineage specification by enhancing the expression of neural genes and down-regulating genes specific to alternative fates. [ABSTRACT FROM AUTHOR]

Published
2017
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32. Short-term Correction of Arginase Deficiency in a Neonatal Murine Model With a Helper-dependent Adenoviral Vector.

Author

Chia-Ling Gau, Rosenblatt, Robin A., Cerullo, Vincenzo, Lay, Fides D., Dow, Adrienne C., Livesay, Justin, Brunetti-Pierri, Nicola, Lee, Brendan, Cederbaum, Stephen D., Grody, Wayne W., and Lipshutz, Gerald S.

Subjects
*GENE therapy, *LABORATORY mice, *LIVER cells, *AMMONIA, *GENETIC engineering, *ANIMAL genetics
Abstract

Neonatal gene therapy has the potential to ameliorate abnormalities before disease onset. Our gene knockout of arginase I (AI) deficiency is characterized by increasing hyperammonemia, neurological deterioration, and early death. We constructed a helper-dependent adenoviral vector (HDV) carrying AI and examined for correction of this defect. Neonates were administered 5 × 109 viral particles/g and analyzed for survival, arginase activity, and ammonia and amino acids levels. The life expectancy of arg−/− mice increased to 27 days while controls died at 14 days with hyperammonemia and in extremis. Death correlated with a decrease in viral DNA/RNA per cell as liver mass increased. Arginase assays demonstrated that vector-injected hepatocytes had ~20% activity of heterozygotes at 2 weeks of age. Hepatic arginine and ornithine in treated mice were similar to those of saline-injected heterozygotes at 2 weeks, whereas ammonia was normal. By 26 days, arginase activity in the treated arg−/− livers declined to <10%, and arginine and ornithine increased. Ammonia levels began increasing by day 25, suggesting the cause of death to be similar to that of uninjected arg−/− mice, albeit at a later time. These studies demonstrate that the AI deficient newborn mouse can be temporarily corrected and rescued using a HDV.Molecular Therapy (2009) 17 7, 1155–1163. doi:10.1038/mt.2009.65 [ABSTRACT FROM AUTHOR]

Published
2009
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33. Nucleosome Occupancy and Methylome Sequencing (NOMe-seq).

Author

Lay FD, Kelly TK, and Jones PA

Subjects
CpG Islands, Epigenesis, Genetic, High-Throughput Nucleotide Sequencing methods, Humans, Methyltransferases metabolism, Promoter Regions, Genetic, DNA Methylation, Nucleosomes metabolism, Sequence Analysis, DNA methods
Abstract

Various methodologies are available to interrogate specific components of epigenetic mechanisms such as DNA methylation or nucleosome occupancy at both the locus-specific and the genome-wide level. It has become increasingly clear, however, that comprehension of the functional interactions between epigenetic mechanisms is critical for understanding how cellular transcription programs are regulated or deregulated during normal and disease development. The Nucleosome Occupancy and Methylome sequencing (NOMe-seq) assay allows us to directly measure the relationship between DNA methylation and nucleosome occupancy by taking advantage of the methyltransferase M.CviPI, which methylates unprotected GpC dinucleotides to create a footprint of chromatin accessibility. This assay generates dual nucleosome occupancy and DNA methylation information at a single-DNA molecule resolution using as little as 200,000 cells and in as short as 15 min reaction time. DNA methylation levels and nucleosome occupancy status of genomic regions of interest can be subsequently interrogated by cloning PCR-amplified bisulfite DNA and sequencing individual clones. Alternatively, NOMe-seq can be combined with next-generation sequencing in order to generate an integrated global map of DNA methylation and nucleosome occupancy, which allows for comprehensive examination as to how these epigenetic components correlate with each other.

Published
2018
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